Literary usage of Navvy

Below you will find example usage of this term as found in modern and/or classical literature:

1.All the Year Round by Charles Dickens (1874)"Nevertheless, "navvy" is a contraction of the term " navigator," -which somehow —
probably at first by way of nickname—came to be applied in the early days ..."

4.The Antiquary by Edward Walford, John Charles Cox, George Latimer Apperson (1888)"Roast beef, boiled beef, Puddings made of eggs, Up jumps a navvy With a pair of
sausage legs. Farming. In July Some reap rye : In August If one will not the ..."